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JP4088147B2 - Flexible container - Google Patents

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JP4088147B2
JP4088147B2 JP2002377904A JP2002377904A JP4088147B2 JP 4088147 B2 JP4088147 B2 JP 4088147B2 JP 2002377904 A JP2002377904 A JP 2002377904A JP 2002377904 A JP2002377904 A JP 2002377904A JP 4088147 B2 JP4088147 B2 JP 4088147B2
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cylindrical
end side
sheet
flexible container
sheets
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JP2004203468A (en
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聡志 山口
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Okamoto Industries Inc
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Okamoto Industries Inc
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【0001】
【発明の属する技術分野】
本発明は、粉体,粒体等の運搬に使用される、ゴム布やターポリン等の可撓性シートからなるフレキシブルコンテナに関する。
【0002】
【従来の技術】
従来、この種フレキシブルコンテナとして、コンテナ本体の上下面に設けた充填用,排出用の開口に筒状のガイド部を取り付けて充填路,排出路を形成したものが知られている(例えば特許文献1、特許文献2参照)。
【0003】
【特許文献1】
実開昭60−112489号公報
【特許文献2】
特開平5−305993号公報
【0004】
また、例えば図7に示すように、コンテナ本体101の充填用又は排出用の開口102に筒状ガイド部103を取り付けると共に、その筒状ガイド部103の先端開口縁にフランジ部104を設けて充填路又は排出路を形成し、そのフランジ部104を、充填用又は排出用のタンクの接続口201に設けたフランジ部202にクランプなどの治具203で連結して、タンク内の収容物をコンテナ本体101に充填する際、若しくは、コンテナ本体101内の収容物をタンクに排出する際に、粉粒状収容物が外部に飛散しないようにしたフレキシブルコンテナも知られている。
【0005】
前記筒状ガイド部103はコンテナ本体101と同様の可撓性シート、例えばターポリン等により筒状に形成され、その基端開口の周縁を外側へ折り曲げその折り曲げ縁105を前記開口102の周縁に溶着し、先端開口の周縁を外側に折り曲げその折り曲げ縁106に硬質材料からなるリング107を縫着108し、さらにリング109,110を重ねて縫着111した後、ターポリン等からなるカバー112でそれらリング107,109,110を覆って縫着113してフランジ部104を形成している。
【0006】
【発明が解決しようとする課題】
ところで、前述した従来のフレキシブルコンテナにおいては、筒状ガイド部103が一枚の可撓性シートからなるため、先端開口側の折り曲げ縁106の幅が小さくなってしまい、リング107を取り付ける際に、その折り曲げ縁106を折り曲げてリング107に仮止め(縫着108)した上で、リング107,109,110を固定(縫着111)しなければならず、フランジ部104の製作に手間がかかるという不具合があった。また、前記折り曲げ縁106が小幅であると共にリング107に対する縫着108のみで固定されるので、使用中に折り曲げ縁106がリング107から外れてしまい、リング107,109,110が脱落する虞れがあった。
また、この種フレキシブルコンテナにおいては、タンク内の粉粒状収容物をコンテナ本体101に充填する際、若しくは、コンテナ本体101内の粉粒状収容物をタンクに排出する際、収容物とリング107,109,110の間に筒状ガイド部103が挟まれるようになるが、筒状ガイド部103が一枚の可撓性シートからなる従来のフレキシブルコンテナでは、該可撓性シートが収容物、リング107,109,110と擦れてシートに穴があく虞れがあった。特に、前記可撓性シートの外面におけるリング110の内周との当接箇所114において擦れが顕著であり、また、収容物が金属粉などの硬質材料である場合は、筒状ガイド部103の先端開口側の折り曲げ箇所115での擦れが激しく、これらの箇所に穴があいた場合、粉粒状収容物が外部に飛散する虞れがあった。
【0007】
本発明はこのような従来事情に鑑みてなされたものであり、その目的とする処は、充填用又は排出用の開口に筒状ガイド部を取り付けその先端開口縁にリングを取り付けてフランジ部を形成した、可撓性シートからなるフレキシブルコンテナにおいて、前記フランジ部を容易に作製し得ると共に、使用中に筒状ガイド部からリングが外れてしまったり、筒状ガイド部に穴があいてしまうような虞れのない、製作性に優れると共に製品としての信頼性が高いフレキシブルコンテナを提供することにある。
【0008】
【課題を解決するための手段】
以上の目的を達成するために、本願第一発明は、コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に取り付けた基端側筒部と、該基端側筒部に取り付けた先端側筒部からなり、該先端側筒部を、前記基端側筒部の先端開口縁に接合した内側の筒状シートと、該内側の筒状シートを覆う外側の筒状シートと、これら内外の筒状シートの先端周縁に接合され上下に重なる環状シートから形成すると共に、
前記フランジ部が、前記上下の環状シートを上下のリングで挟み、これらリングを相互に固定して形成されていることを特徴とする。
【0009】
このような構成によれば、筒状ガイド部の先端側が、内側の筒状シートを外側の筒状シートで覆った二重構造となり、該筒状ガイド部が一枚の可撓性シートからなる場合に比べその強度が増すので、収容物の充填時,排出時などに筒状ガイド部が収容物やリングと擦れたとしても、その擦れ部分に穴があくような虞れが少ない。
また、前記内外の筒状シートの先端に環状シートを別途取り付けてその幅を拡張し、その環状シートを上下に重ねこれを上下のリングで挟んだ上でそれらをまとめて固定してフランジ部が形成されるので、一枚の可撓性シートからなる筒状ガイド部の先端開口縁を外側に折り曲げその小幅な折り曲げ縁を下側のリングに一旦仮止めした後に上下のリングを固定する従来の構成に比べ、リングに対する環状シートの仮止めを不要としてフランジ部を容易に作製することができる。且つ、上下のリングで上下の環状シートを挟持する積層形態として筒状シートに対し夫々のリングを強固に固定し得るので、使用中にリングが脱落するうような虞れを少なくすることができる。
【0010】
ところで、前記第一発明において、内外の筒状シートは、環状シートを重ねてリングで固定することでその先端側が相互に接合されており、且つ内側の筒状シート基端は基端側筒部に接合されるものの、外側の筒状シート基端はどこにも接合されない遊端となる。このような構成においては、先端側筒部を容易に作製し得るという利点を奏するものの、内外の筒状シート間に隙間が生じ異物や収容物等が入り込む可能性が残る。
【0011】
よって、本願第二発明では、コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に取り付けた基端側筒部と、該基端側筒部に取り付けた先端側筒部からなり、該先端側筒部を、前記基端側筒部の先端開口縁に接合した内外二枚重ねの筒状シートと、これら内外の筒状シートの先端接合縁に接合した環状シートから形成すると共に、
前記フランジ部が、前記環状シートを上下のリングで挟み、これらリングを相互に固定して形成されていることを特徴とする。
【0012】
このような構成とした場合、前記第一発明による作用効果に加えて、内外の筒状シートが、その先端側と基端側を相互に接合して一体化した二枚重ねのシートとなるので、内外の筒状シート間に異物や収容物等が入り込む可能性は殆どなくなる。
また、これら筒状シートの先端側では、両筒状シート先端を接合し且つ該接合縁に一枚の環状シートを取り付け、該環状シートを上下のリングで挟んだ上でそれらをまとめて固定した構成となるので、環状シートを二枚用いる第一発明に比べ、先端側筒部の作製に係る手間とコストをより低減しながら、第一発明と同様の作用効果を得ることができる。
【0013】
前記第一,第二発明は、新規に作成するフレキシブルコンテナに前述の構成を採用することもできるが、本願第三発明のように、既存のフレキシブルコンテナの補修時に採用することが好ましい。
【0014】
すなわち、本願第三発明は、前記第一,第二発明において、前記基端側筒部が、既存のフレキシブルコンテナに備えられたフランジ付き筒状ガイド部を中途部で切断したものであって、その切断開口縁に前記先端側筒部を接合して、既存のフレキシブルコンテナにおける筒状ガイド部の先端側を補修してなるものであることを特徴とする。
【0015】
前記第一,第二発明の主要部を新規に作成するフレキシブルコンテナに採用する場合は、本願第四発明の構成とすることが好ましい。
【0016】
すなわち、本願第四発明は、コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に接合した内側の筒状シートと、該内側の筒状シートを覆う外側の筒状シートと、これら内外の筒状シートの先端周縁に接合され上下に重なる環状シートから形成され、
前記フランジ部が、前記上下の環状シートを上下のリングで挟み、これらリングを相互に固定して形成されていることを特徴とする。
【0018】
【発明の実施の形態】
以下、本発明に係るフレキシブルコンテナの実施形態の例を図面を参照して説明する。
図1に示すフレキシブルコンテナAは本願第一発明に係り、このフレキシブルコンテナAは、ターポリン等の可撓性シートにより略角筒状もしくは円筒状に形成したコンテナ本体1の上下面に、充填用もしくは排出用の開口2,3を設け、それら開口2,3に筒状ガイド部4,5を取り付けると共に、夫々の筒状ガイド部4,5の先端開口縁にフランジ部6,7を設けて、充填用もしくは排出用の通路8,9を形成したものである。
【0019】
またこのフレキシブルコンテナAは、主に充填用として使用される開口2に取り付けられている筒状ガイド部4とフランジ部6を、図7に示す従来の筒状ガイド部103、フランジ部104と同様の構成とする一方、主に排出用として使用される開口3に取り付けられている筒状ガイド部5とフランジ部7において、本発明の構成を採用したものである。
【0020】
すなわち、本例のフレキシブルコンテナAは作製当初、充填側,排出側の夫々に、図7に示す従来例と同様の構成の筒状ガイド部、フランジ部が取り付けられていたが、長期の使用に伴い排出側の筒状ガイド部若しくはフランジ部を交換する必要が生じたため、本発明に係る筒状ガイド部5とフランジ部7にて補修したものである。
充填側の筒状ガイド部4とフランジ部6は、前述の筒状ガイド部103、フランジ部104と同様な構成のため図示及び説明を省略し、以下、排出側の筒状ガイド部5、フランジ部7について、図2を参照して詳述する。
【0021】
筒状ガイド部5は、排出用の開口3に取り付けられていた既存の筒状ガイド部を、その長さ方向中途部で切断した基端側筒部10と、この基端側筒部10に取り付けた先端側筒部20からなっている。
基端側筒部10は、コンテナ本体1と同様の可撓性シートからなり、その基端開口縁11を外側に折り曲げ開口3に溶着して、コンテナ本体1に取り付けられている。
【0022】
先端側筒部20は、内外の筒状シート21,22と、上下の環状シート23,24からなり、その先端にフランジ部7が形成されている。
【0023】
内側の筒状シート21は、コンテナ本体1と同様の可撓性シートからなり、その基端開口縁21aを基端側筒部10の先端開口縁(切断開口縁)12に溶着して、基端側筒部10に一体的に接続されている。またこの筒状シート21の先端開口縁21bには、環状シート23が取り付けられている。
【0024】
外側の筒状シート22は、コンテナ本体1と同様の可撓性シートにより所定の寸法に形成され、内側の筒状シート21の先端側の半部を覆っている。またこの筒状シート22の先端開口縁22aには環状シート24が取り付けられ、後端開口縁22bは遊端縁となっている。
【0025】
環状シート23,24は、前記内外の筒状シート21,22の先端開口縁の外側への折り曲げ寸法を拡張するためのもので、コンテナ本体1と同様の可撓性シートにより、後述するリング25a,25b,25cと同程度の幅をもって形成され、その内周部分を溶着して内外の筒状シート21,22の先端開口縁21b,22aに一体的に接続されている。
【0026】
フランジ部7は、上下に重なる環状シート23,24を下側のリング25aと上側の二枚のリング25b,25cで挟み、それら上下のリング25a〜25cの内周側を二枚の環状シート23,24と共に縫着26し、さらにこれらリング25a〜25cを覆うように被せたカバー27の外側から、上下のリング25a〜25c、二枚の環状シート23,24と共にカバー27の上下面を縫着28して形成されている。前記縫着26箇所は、内外の筒状シート21,22の先端開口縁21b,22aと環状シート23,24との溶着箇所とし、前記縫着28箇所はその外側で且つカバー27の開口部27a寄りであることが好ましい。尚、前記縫着26,28はビス止め等の適宜固定手段に変更してもよい。
【0027】
カバー27は、コンテナ本体1と同様の可撓性シートにより断面コ字形の環状に形成され、縫着26により積層一体化されたリング25a〜25cとその間に挟まれた環状シート23,24を覆い、リング25a〜25cや環状シート23,24間への異物の混入を防止している。また本例では、カバー27の縫着28を前記したように開口部27a寄りとしてカバー27外周寄りの縫着を不要とし、余分な縫着作業を無くしている。
【0028】
このような構成になる本例のフレキシブルコンテナAによれば、筒状ガイド部5の先端側が、内側の筒状シート21を外側の筒状シート22で覆った二重構造となり、一枚の可撓性シートからなる従来の筒状ガイド部103に比べその強度が増す。よって、コンテナ本体1内の収容物が金属粉等の硬質材料であって、この収容物を排出する際に、筒状ガイド部5における先端開口側の折り曲げ箇所30に収容物が当ったて擦れたり、リング25cとの当接箇所31が擦れたとしても、これらの箇所30,31に穴があくような虞れが少ない。
また、内外の筒状シート21,22の先端に取り付けた環状シート23,24を上下に重ね、これらを上下のリング25a〜25cで挟んだ状態で、環状シート23,24とリング25a〜25cをまとめて縫着26することが出来るので、一枚の可撓性シートからなる筒状ガイド部103の先端開口縁を外側に折り曲げその折り曲げ縁106をリング107に仮止めした後にリング107,109,110を固定する従来の構成に比べ、フランジ部7を容易に作製することができる。
また、内外の筒状シート21,22の先端縁が環状シート23,24で拡張され、この環状シート23,24を上下のリング25a〜25cで挟んでフランジ部7が形成されるので、筒状シート21,22と各リング25a〜25cとの連結がより強固になり、使用中にリング25a〜25cが脱落してしまうような虞れが少なくなる。
【0029】
よって、長期の使用に伴い筒状ガイド部の先端開口縁に穴があいたりフランジ部が取れかかったようなフレキシブルコンテナにおいて、図3に示すように、その筒状ガイド部の先端側の半部を切断して、フランジ部7を備えた筒状ガイド部5に補修することで、永年の使用に耐え得る製品とすることができた。
【0030】
次に、本願第二発明の実施形態例について、図4を参照しながら説明するが、この例のフレキシブルコンテナの基本的構成は前述したフレキシブルコンテナAと同様であるため、図中に前記と同一の符号を付すなどして重複する図示と説明を一部省略し、特徴点のみ以下に述べる。
【0031】
この例の筒状ガイド部5’を構成する先端側筒部20’は、内外の筒状シート21,22’と、一枚の環状シート23からなり、その先端にフランジ部7’が形成されている。
【0032】
外側の筒状シート22’は、内側の筒状シート21の全域を覆うことができる寸法に形成され、その先端開口縁22a’、基端開口縁22b’を、夫々内側の筒状シート21の先端開口縁21b、基端開口縁21aに溶着して、内側の筒状シート21と一体化されている。
【0033】
環状シート23は、前記のようにして内外に重なる状態で一体化された両筒状シート21,22’の先端接合縁(先端開口縁21b,22a’同士を溶着した部分)にその内周部分を溶着して、内外の筒状シート21,22’に一体的に接続されている。
【0034】
フランジ部7’は、前記環状シート23を下側のリング25aと上側の二枚のリング25b,25cで挟み、それら上下のリング25a〜25cの内周側を縫着26し、さらにこれらリング25a〜25cの外側から被せたカバー27の外側から、上下のリング25a〜25cを縫着28して形成されている。前記縫着26箇所は、内外の筒状シート21,22’の先端開口縁21b,22a’と環状シート23との溶着箇所とし、縫着28箇所はその外側で且つカバー27の開口部27a寄りであることが好ましい。
【0035】
カバー27は、縫着26により積層一体化されたリング25a〜25cとその間に挟まれた環状シート23を覆い、リング25a〜25cと環状シート23間への異物の混入を防止している。
【0036】
このような構成になるこの例のフレキシブルコンテナによれば、筒状ガイド部5’の先端側が内外の筒状シート21,22’を重ねた二重構造となるので、前記実施形態同様、筒状ガイド部5’の先端開口側の折り曲げ箇所30やリング25cとの当接箇所31等に穴があくような虞れが少ない。
また、内外の筒状シート21,22’の先端に取り付けた環状シート23を上下のリング25a〜25cで挟んでフランジ部7’が形成されるので、前記実施形態同様、該フランジ部7’を容易に作製することができる。
また、内外の筒状シート21,22’の先端縁が環状シート23で拡張され、この環状シート23を上下のリング25a〜25cで挟んでフランジ部7’が形成されるので、前記実施形態同様、使用中にリング25a〜25cが脱落してしまうような虞れが少なくなる。
【0037】
よって、長期の使用に伴い筒状ガイド部やフランジ部を交換する必要が生じたフレキシブルコンテナにおいて、その筒状ガイド部の先端側の半部を切断して、フランジ部7’を備えた筒状ガイド部5’に補修することで、永年の使用に耐え得る製品とすることができた。
さらに、内外の筒状シート21,22’が、その先端側と基端側の双方を溶着して一体化された二枚重ね状になるので、これら筒状シート21,22’間に異物や粉粒状収容物等が入り込む可能性は殆どなくなる。
また、これら筒状シート21,22’の先端側を溶着して接合し、且つその接合縁に一枚の環状シート23を溶着し、該環状シート23を上下のリング25a〜25cで挟んだ構成としているので、環状シートを二枚用いる場合に比べ、先端側筒部20’の作製に係る手間とコストを低減することができる。
【0038】
前述した夫々の実施形態は、既存のフレキシブルコンテナを補修する場合に本発明を採用した例であるが、以下、新規に作製されるフレキシブルコンテナに本発明を採用した例について、図5、図6を参照して説明する。
これら例のフレキシブルコンテナにおいても基本的構成は前述したフレキシブルコンテナAと同様であるため、図中に前記と同一の符号を付すなどして重複する図示と説明を一部省略し、特徴点のみ以下に述べる。
【0039】
図5は本願第四発明に係り、この例では、図2に示す実施形態における内側の筒状シート21を基端側筒部10と一体の一枚の可撓性シートから形成し、この筒状シート21’の基端開口縁21a’を外側に折り曲げて開口3に溶着することで、内側の筒状シート21’がコンテナ本体1に直接取り付けられている。
また図6は本願第五発明に係り、この例では、図4に示す実施形態における内側の筒状シート21を基端側筒部10と一体の一枚の可撓性シートから形成し、この筒状シート21”の基端開口縁21a”を外側に折り曲げて開口3に溶着することで、内側の筒状シート21”がコンテナ本体1に直接取り付けられている。
【0040】
よって、これらの例では、新規に作製するフレキシブルコンテナにおいて、前述した夫々の実施形態同様、筒状ガイド部5,5’の先端開口側の折り曲げ箇所30やリング25cとの当接箇所31等に穴があくような虞れが少ない、フランジ部7,7’を容易に作製することができる、使用中にリング25a〜25cが脱落してしまうような虞れが少なくなる、といった効果を奏する。
したがって、長期の使用によっても筒状ガイド部やフランジ部を交換する必要がなく、永年の使用に耐え得るフレキシブルコンテナを提供することができた。
【0041】
以上、本発明の実施形態の例を図面を参照して説明したが、本発明は図示例に限定されるものではなく、請求項1〜5のいずれかに記載された技術的範疇の範囲内において種々の変更が可能であることは言うまでもない。
【0042】
【発明の効果】
本発明に係るフレキシブルコンテナは以上説明したように構成したので、以下の効果を奏する。
【0043】
(請求項1)
筒状ガイド部先端側を内外の筒状シートが重なる二重構造とすることで、収容物充填,排出の度に筒状ガイド部内面に収容物が当って擦れたり、筒状ガイド部外面のリングとの当接箇所が擦れたとしても、筒状ガイド部に穴があくような虞れのない程度にその強度を高めることができた。また、夫々の筒状シート先端に取り付けた環状シートを上下に重ねこれらを上下のリングで挟む積層形態となるので、フランジ部を容易に作製し得ると共に、使用中にリングが脱落するような虞れを防止することができた。
よって、収容物が金属粉等の硬質材料であったとしても、シートを継ぎ当てたり筒状ガイド部,フランジ部等を交換する必要のない、長期の使用に耐え得る信頼性の高いフレキシブルコンテナを、低コストで提供することができた。
【0044】
(請求項2)
請求項1による効果に加えて、先端と基端を接合し一体化させた内外の筒状シートで筒状ガイド部先端側を形成したので、両筒状シート間に異物や粉粒状収容物等が入り込んでシートが損傷する虞れを防止し得た。さらに、内外の筒状シート先端に接合した一枚の環状シートを上下のリングで挟む積層形態となるので、フランジ部をより容易且つ低コストで作製することができる等、多くの効果を有するフレキシブルコンテナを提供することができた。
【0045】
(請求項3)
長期の使用に伴い筒状ガイド部,フランジ部等を補修する必要が生じた既存のフレキシブルコンテナにおいて、請求項1,2の構成を採用することで、前述の効果を備えた永年の使用に耐え得る製品とすることができた。
【0046】
(請求項4)
請求項1又は2による前述の効果を備えた、永年の使用に耐え得る新規なフレキシブルコンテナを提供することができた。
【図面の簡単な説明】
【図1】本発明に係るフレキシブルコンテナの実施形態の一例を示す斜視図。
【図2】同フレキシブルコンテナの下部の縦断面図で、要部を拡大して示す。
【図3】同フレキシブルコンテナの作製手順を示す簡略図。
【図4】本発明に係るフレキシブルコンテナの実施形態の他例を示す要部の拡大断面図。
【図5】本発明に係るフレキシブルコンテナの実施形態の他例を示す要部の拡大断面図。
【図6】本発明に係るフレキシブルコンテナの実施形態の他例を示す要部の拡大断面図。
【図7】従来のフレキシブルコンテナの下部の縦断面図。
【符号の説明】
A:フレキシブルコンテナ
1:コンテナ本体
2,3:開口
5,5’:筒状ガイド部
6,7:フランジ部
10:基端側筒部
20,20’:先端側筒部
21,21’,21”:内側の筒状シート
22,22’:外側の筒状シート
23,24:環状シート
25a,25b,25c:リング
27:カバー
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flexible container made of a flexible sheet such as rubber cloth or tarpaulin, which is used for transporting powders, granules and the like.
[0002]
[Prior art]
Conventionally, as this kind of flexible container, a container in which a cylindrical guide portion is attached to an opening for filling and discharging provided on the upper and lower surfaces of a container body to form a filling path and a discharging path is known (for example, Patent Documents). 1, see Patent Document 2).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 60-112489 [Patent Document 2]
Japanese Patent Laid-Open No. 5-305993
Further, for example, as shown in FIG. 7, a cylindrical guide portion 103 is attached to the opening 102 for filling or discharging of the container main body 101, and a flange portion 104 is provided at the opening edge of the cylindrical guide portion 103 for filling. A passage or a discharge passage is formed, and the flange portion 104 is connected to a flange portion 202 provided in a connection port 201 of a tank for filling or discharging with a jig 203 such as a clamp, and the contents in the tank are containerized. There is also known a flexible container in which the granular container is prevented from being scattered outside when filling the main body 101 or discharging the contents in the container main body 101 to the tank.
[0005]
The cylindrical guide portion 103 is formed in a cylindrical shape by a flexible sheet similar to the container main body 101, such as tarpaulin, and the periphery of the base end opening is bent outward, and the bent edge 105 is welded to the periphery of the opening 102. Then, the peripheral edge of the tip opening is bent outward, and a ring 107 made of a hard material is sewn 108 on the bent edge 106, and the rings 109 and 110 are overlapped and sewn 111, and then the ring 112 is covered with a cover 112 made of tarpaulin or the like. 107, 109, 110 are covered and sewn 113 to form the flange portion 104.
[0006]
[Problems to be solved by the invention]
By the way, in the above-described conventional flexible container, since the cylindrical guide portion 103 is made of a single flexible sheet, the width of the bent edge 106 on the tip opening side becomes small, and when the ring 107 is attached, The bent edge 106 must be bent and temporarily fastened (sewn 108) to the ring 107, and then the rings 107, 109, 110 must be fixed (sewn 111), and it takes time to manufacture the flange portion 104. There was a bug. Further, since the bent edge 106 is narrow and is fixed only by the sewing 108 to the ring 107, the bent edge 106 may come off from the ring 107 during use, and the rings 107, 109, 110 may fall off. there were.
Further, in this type of flexible container, when the container body 101 is filled with the granular material in the tank, or when the granular material in the container body 101 is discharged into the tank, the container and the rings 107, 109 are used. , 110, the cylindrical guide portion 103 is sandwiched between them, but in the conventional flexible container in which the cylindrical guide portion 103 is made of a single flexible sheet, the flexible sheet is contained in the ring 107. , 109, 110 and there is a risk that the sheet will have holes. In particular, rubbing is remarkable at the contact portion 114 of the outer surface of the flexible sheet with the inner periphery of the ring 110, and when the container is a hard material such as metal powder, The rubbing at the bent portion 115 on the tip opening side is severe, and if there are holes in these portions, there is a possibility that the powdered granular material is scattered outside.
[0007]
The present invention has been made in view of such a conventional situation, and the intended process is to attach a cylindrical guide part to a filling or discharge opening and attach a ring to the opening edge of the tip to attach a flange part. In the formed flexible container made of a flexible sheet, the flange portion can be easily manufactured, and the ring may be detached from the cylindrical guide portion during use or the cylindrical guide portion may have a hole. It is an object of the present invention to provide a flexible container that has excellent manufacturability and high reliability as a product.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the first invention of the present application is provided with openings for filling or discharging at the top and bottom of a container body, and a cylindrical guide portion is attached to at least one of the openings, and the cylindrical guide portion A flexible container having a flange at the opening edge of the tip,
The cylindrical guide portion is composed of a proximal end side cylindrical portion attached to the opening and a distal end side cylindrical portion attached to the proximal end side cylindrical portion, and the distal end side cylindrical portion is connected to the distal end of the proximal end side cylindrical portion. An inner cylindrical sheet joined to the opening edge, an outer cylindrical sheet covering the inner cylindrical sheet, and an annular sheet that is joined to the peripheral edge of the inner and outer cylindrical sheets and overlaps the top and bottom,
The flange portion is formed by sandwiching the upper and lower annular sheets with upper and lower rings and fixing the rings to each other.
[0009]
According to such a configuration, the distal end side of the cylindrical guide portion has a double structure in which the inner cylindrical sheet is covered with the outer cylindrical sheet, and the cylindrical guide portion is formed of a single flexible sheet. Since the strength is increased as compared with the case, even when the cylindrical guide portion rubs against the stored item or the ring during filling or discharging of the stored item, there is little possibility that a hole is formed in the rubbed portion.
Further, an annular sheet is separately attached to the tip of the inner and outer cylindrical sheets to expand its width, the annular sheets are stacked vertically and sandwiched between upper and lower rings, and fixed together to fix the flange portion. In the conventional method, the upper and lower rings are fixed after the end opening edge of the cylindrical guide portion made of a single flexible sheet is bent outward and the small bent edge is temporarily fixed to the lower ring. Compared to the configuration, the flange portion can be easily manufactured without the need for temporarily fixing the annular sheet to the ring. And since each ring can be firmly fixed with respect to a cylindrical sheet | seat as a lamination | stacking form which clamps an upper and lower cyclic | annular sheet | seat with an upper and lower ring, it is possible to reduce a possibility that a ring will fall off during use. .
[0010]
By the way, in the first invention, the inner and outer tubular sheets are joined to each other by overlapping the annular sheets and fixing them with a ring, and the inner cylindrical sheet base end is the base end side cylindrical portion. However, the outer cylindrical sheet base end is a free end that is not joined anywhere. In such a configuration, there is an advantage that the front end side cylindrical portion can be easily manufactured, but there is a possibility that a gap is generated between the inner and outer cylindrical sheets and foreign matter, contained matter, or the like enters.
[0011]
Therefore, in the second invention of the present application, filling or discharging openings are provided at the top and bottom of the container main body, and the cylindrical guide portion is attached to at least one of the openings, and the flange portion is provided at the leading end opening edge of the cylindrical guide portion. A flexible container,
The cylindrical guide portion is composed of a proximal end side cylindrical portion attached to the opening and a distal end side cylindrical portion attached to the proximal end side cylindrical portion, and the distal end side cylindrical portion is connected to the distal end of the proximal end side cylindrical portion. While forming from the inner and outer two-ply cylindrical sheet joined to the opening edge, and the annular sheet joined to the tip joining edge of these inner and outer cylindrical sheets,
The flange portion is formed by sandwiching the annular sheet between upper and lower rings and fixing the rings to each other.
[0012]
In such a configuration, in addition to the operational effects of the first invention, the inner and outer cylindrical sheets become a two-ply sheet in which the distal end side and the proximal end side are joined to each other. There is almost no possibility that foreign matter, contained matter or the like enters between the cylindrical sheets.
Further, at the leading end side of these cylindrical sheets, both cylindrical sheet leading ends are joined, and one annular sheet is attached to the joining edge, and the annular sheets are sandwiched between upper and lower rings and fixed together. Since it becomes a structure, the effect similar to 1st invention can be acquired, reducing the effort and cost concerning preparation of a front end side cylinder part more compared with 1st invention which uses two annular sheets.
[0013]
In the first and second inventions, the above-described configuration can be adopted for a newly created flexible container. However, as in the third invention of the present application, it is preferably adopted when repairing an existing flexible container.
[0014]
That is, the third invention of the present application is the first and second inventions, wherein the base end side cylindrical part is obtained by cutting a flanged cylindrical guide part provided in an existing flexible container at an intermediate part, The distal end side cylindrical portion is joined to the cutting opening edge, and the distal end side of the cylindrical guide portion in the existing flexible container is repaired.
[0015]
When adopting the main part of the first and second inventions in a flexible container to be newly created, it is preferable to adopt the configuration of the fourth invention of the present application.
[0016]
That is, the fourth invention of the present application is provided with openings for filling or discharging on the upper and lower sides of the container main body, and a cylindrical guide portion is attached to at least one of the openings, and a flange portion is provided at the distal end opening edge of the cylindrical guide portion. A flexible container,
An inner cylindrical sheet joined to the opening, an outer cylindrical sheet that covers the inner cylindrical sheet, and an annular shape that is joined to the peripheral edges of the inner and outer cylindrical sheets and overlaps with each other Formed from sheets,
The flange portion is formed by sandwiching the upper and lower annular sheets with upper and lower rings and fixing the rings to each other.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of a flexible container according to the present invention will be described with reference to the drawings.
The flexible container A shown in FIG. 1 relates to the first invention of the present application, and the flexible container A is used for filling or filling the upper and lower surfaces of the container body 1 formed in a substantially rectangular tube shape or cylindrical shape by a flexible sheet such as tarpaulin. The discharge openings 2 and 3 are provided, and the cylindrical guide portions 4 and 5 are attached to the openings 2 and 3, and the flange portions 6 and 7 are provided at the end opening edges of the respective cylindrical guide portions 4 and 5. Filling or discharging passages 8 and 9 are formed.
[0019]
This flexible container A has a cylindrical guide portion 4 and a flange portion 6 attached to the opening 2 mainly used for filling, similar to the conventional cylindrical guide portion 103 and flange portion 104 shown in FIG. On the other hand, the configuration of the present invention is adopted in the cylindrical guide portion 5 and the flange portion 7 which are attached to the opening 3 mainly used for discharging.
[0020]
That is, the flexible container A of the present example was initially provided with a cylindrical guide portion and a flange portion having the same configuration as the conventional example shown in FIG. Accordingly, since it is necessary to replace the cylindrical guide portion or the flange portion on the discharge side, the cylindrical guide portion 5 and the flange portion 7 according to the present invention are repaired.
Since the cylindrical guide portion 4 and the flange portion 6 on the filling side have the same configuration as the cylindrical guide portion 103 and the flange portion 104 described above, illustration and description thereof will be omitted. Hereinafter, the cylindrical guide portion 5 and the flange on the discharge side will be omitted. The part 7 will be described in detail with reference to FIG.
[0021]
The cylindrical guide portion 5 includes a base end side cylindrical portion 10 obtained by cutting an existing cylindrical guide portion attached to the discharge opening 3 at a midway portion in the length direction, and the base end side cylindrical portion 10. It consists of the attached front end side cylinder part 20.
The proximal end side cylinder portion 10 is made of a flexible sheet similar to that of the container main body 1, and is attached to the container main body 1 with its proximal end opening edge 11 bent outward and welded to the opening 3.
[0022]
The front end side cylinder portion 20 is composed of inner and outer cylindrical sheets 21 and 22 and upper and lower annular sheets 23 and 24, and a flange portion 7 is formed at the front end thereof.
[0023]
The inner cylindrical sheet 21 is made of a flexible sheet similar to that of the container main body 1, and its base end opening edge 21 a is welded to the front end opening edge (cutting opening edge) 12 of the base end side cylindrical portion 10. It is integrally connected to the end side cylinder part 10. An annular sheet 23 is attached to the opening edge 21 b of the cylindrical sheet 21.
[0024]
The outer cylindrical sheet 22 is formed in a predetermined dimension by a flexible sheet similar to that of the container main body 1 and covers the half part on the front end side of the inner cylindrical sheet 21. An annular sheet 24 is attached to the front end opening edge 22a of the cylindrical sheet 22, and the rear end opening edge 22b is a free end edge.
[0025]
The annular sheets 23 and 24 are for expanding the bending dimension of the inner and outer cylindrical sheets 21 and 22 to the outside of the edge of the opening of the front end. The flexible sheet similar to the container body 1 is used to form a ring 25a described later. , 25b, and 25c with the same width, and the inner peripheral portion thereof is welded to be integrally connected to the tip opening edges 21b and 22a of the inner and outer cylindrical sheets 21 and 22.
[0026]
The flange portion 7 sandwiches the annular sheets 23 and 24 that overlap each other between the lower ring 25a and the upper two rings 25b and 25c, and the inner peripheral sides of the upper and lower rings 25a to 25c are two annular sheets 23. , 24, and the upper and lower surfaces of the cover 27 together with the upper and lower rings 25a to 25c and the two annular sheets 23 and 24 from the outside of the cover 27 that covers the rings 25a to 25c. 28. The 26 places of sewing are welded places between the end opening edges 21b, 22a of the inner and outer cylindrical sheets 21, 22 and the annular sheets 23, 24, and the 28 places of sewing are outside and the opening 27a of the cover 27. It is preferable to be close. The sewing 26 and 28 may be changed to appropriate fixing means such as screws.
[0027]
The cover 27 is formed in an annular shape having a U-shaped cross section by a flexible sheet similar to the container body 1, and covers the rings 25 a to 25 c laminated and integrated by the sewing 26 and the annular sheets 23 and 24 sandwiched therebetween. Further, foreign matter is prevented from being mixed between the rings 25a to 25c and the annular sheets 23 and 24. Further, in this example, the sewing 28 of the cover 27 is close to the opening 27a as described above, so that the sewing near the outer periphery of the cover 27 is unnecessary, and unnecessary sewing work is eliminated.
[0028]
According to the flexible container A of this example configured as described above, the distal end side of the cylindrical guide portion 5 has a double structure in which the inner cylindrical sheet 21 is covered with the outer cylindrical sheet 22, so Compared with the conventional cylindrical guide part 103 which consists of a flexible sheet | seat, the intensity | strength increases. Therefore, the contents in the container main body 1 are a hard material such as metal powder, and when the contents are discharged, the contents are rubbed against the bent portion 30 on the distal end opening side in the cylindrical guide portion 5 and rubbed. Even if the contact portion 31 with the ring 25c is rubbed, there is little fear that the portions 30, 31 will be perforated.
Further, the annular sheets 23 and 24 attached to the tips of the inner and outer cylindrical sheets 21 and 22 are stacked one above the other, and the annular sheets 23 and 24 and the rings 25a to 25c are sandwiched between the upper and lower rings 25a to 25c. Since the stitches 26 can be sewn together, the opening edge of the cylindrical guide portion 103 made of a single flexible sheet is bent outward, the bent edge 106 is temporarily fixed to the ring 107, and then the rings 107, 109, Compared with the conventional structure which fixes 110, the flange part 7 can be produced easily.
In addition, since the leading edges of the inner and outer cylindrical sheets 21 and 22 are expanded by the annular sheets 23 and 24 and the annular sheets 23 and 24 are sandwiched between the upper and lower rings 25a to 25c, the flange portion 7 is formed. The connection between the sheets 21 and 22 and the rings 25a to 25c becomes stronger, and the possibility that the rings 25a to 25c fall off during use is reduced.
[0029]
Therefore, as shown in FIG. 3, in the flexible container in which the end opening edge of the cylindrical guide portion has a hole or the flange portion has been removed with long-term use, as shown in FIG. By cutting and repairing the cylindrical guide portion 5 provided with the flange portion 7, it was possible to obtain a product that can withstand long-term use.
[0030]
Next, an embodiment of the second invention of the present application will be described with reference to FIG. 4, but the basic configuration of the flexible container of this example is the same as that of the flexible container A described above. Some of the overlapping illustrations and explanations are omitted, for example by attaching the reference numeral, and only the feature points are described below.
[0031]
The front end side cylindrical portion 20 ′ constituting the cylindrical guide portion 5 ′ of this example is composed of inner and outer cylindrical sheets 21, 22 ′ and one annular sheet 23, and a flange portion 7 ′ is formed at the front end thereof. ing.
[0032]
The outer cylindrical sheet 22 ′ is formed to have a size capable of covering the entire area of the inner cylindrical sheet 21, and the distal end opening edge 22a ′ and the base end opening edge 22b ′ are respectively formed on the inner cylindrical sheet 21. It is welded to the distal end opening edge 21b and the proximal end opening edge 21a, and is integrated with the inner cylindrical sheet 21.
[0033]
As described above, the annular sheet 23 has an inner peripheral portion at the leading end joining edge (the portion where the leading end opening edges 21b and 22a ′ are welded) of both the cylindrical sheets 21 and 22 ′ integrated in an overlapping state inside and outside. Are integrally connected to the inner and outer cylindrical sheets 21 and 22 '.
[0034]
The flange portion 7 ′ sandwiches the annular sheet 23 between the lower ring 25 a and the upper two rings 25 b and 25 c, and sews 26 the inner peripheral sides of the upper and lower rings 25 a to 25 c, and further these rings 25 a The upper and lower rings 25a to 25c are sewn 28 from the outside of the cover 27 covered from the outside of .about.25c. The 26 sewn locations are the welded locations of the tip opening edges 21b, 22a 'of the inner and outer tubular sheets 21, 22' and the annular sheet 23, and the sewn 28 locations are outside thereof and closer to the opening 27a of the cover 27. It is preferable that
[0035]
The cover 27 covers the rings 25 a to 25 c laminated and integrated by the sewing 26 and the annular sheet 23 sandwiched therebetween, and prevents foreign matters from being mixed between the rings 25 a to 25 c and the annular sheet 23.
[0036]
According to the flexible container of this example having such a configuration, the distal end side of the cylindrical guide portion 5 ′ has a double structure in which the inner and outer cylindrical sheets 21 and 22 ′ are stacked. There is little possibility that a hole may be formed in the bent portion 30 on the tip opening side of the guide portion 5 ′, the contact portion 31 with the ring 25c, or the like.
In addition, since the flange portion 7 ′ is formed by sandwiching the annular sheet 23 attached to the tips of the inner and outer cylindrical sheets 21 and 22 ′ between the upper and lower rings 25a to 25c, the flange portion 7 ′ is It can be easily manufactured.
Further, the leading edge of the inner and outer cylindrical sheets 21, 22 ′ is expanded by the annular sheet 23, and the annular sheet 23 is sandwiched between the upper and lower rings 25a to 25c to form the flange portion 7 ′. The risk of the rings 25a to 25c dropping off during use is reduced.
[0037]
Therefore, in the flexible container in which it is necessary to replace the cylindrical guide part and the flange part with long-term use, the half part on the tip side of the cylindrical guide part is cut, and the cylindrical shape provided with the flange part 7 ' By repairing the guide portion 5 ', it was possible to make a product that can withstand long-term use.
Further, since the inner and outer cylindrical sheets 21 and 22 ′ are integrated by welding both the distal end side and the proximal end side, the foreign sheets and the particulates are formed between the cylindrical sheets 21 and 22 ′. There is almost no possibility that the contents will enter.
Further, the cylindrical sheets 21 and 22 ′ are welded and joined to each other, and one annular sheet 23 is welded to the joining edge, and the annular sheet 23 is sandwiched between upper and lower rings 25a to 25c. Therefore, compared with the case where two annular sheets are used, it is possible to reduce labor and cost related to the production of the distal end side cylinder portion 20 ′.
[0038]
Each of the above-described embodiments is an example in which the present invention is employed when repairing an existing flexible container. Hereinafter, examples in which the present invention is employed in a newly produced flexible container will be described with reference to FIGS. 5 and 6. Will be described with reference to FIG.
Since the basic configuration of the flexible containers in these examples is the same as that of the flexible container A described above, some of the overlapping illustrations and explanations are omitted by attaching the same reference numerals as above, and only the feature points are described below. In the following.
[0039]
FIG. 5 relates to the fourth invention of the present application. In this example, the inner cylindrical sheet 21 in the embodiment shown in FIG. 2 is formed from a single flexible sheet integrated with the base end side cylinder portion 10. The inner cylindrical sheet 21 ′ is directly attached to the container body 1 by bending the base opening edge 21 a ′ of the sheet 21 ′ outward and welding it to the opening 3.
FIG. 6 relates to the fifth invention of the present application. In this example, the inner cylindrical sheet 21 in the embodiment shown in FIG. 4 is formed from a single flexible sheet integral with the base end side cylinder portion 10. The inner cylindrical sheet 21 ″ is directly attached to the container body 1 by bending the proximal end opening edge 21 a ″ of the cylindrical sheet 21 ″ outward and welding it to the opening 3.
[0040]
Therefore, in these examples, in the newly produced flexible container, as in the above-described embodiments, the bent portion 30 on the distal end opening side of the cylindrical guide portions 5 and 5 ′, the contact portion 31 with the ring 25c, and the like There is an effect that there is little possibility that a hole is formed, the flange portions 7 and 7 'can be easily manufactured, and there is less possibility that the rings 25a to 25c are dropped during use.
Therefore, it is not necessary to replace the cylindrical guide portion and the flange portion even after long-term use, and a flexible container that can withstand long-term use can be provided.
[0041]
As mentioned above, although the example of the embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to the illustrated example, and is within the scope of the technical category described in any one of claims 1 to 5. It goes without saying that various changes can be made.
[0042]
【The invention's effect】
Since the flexible container which concerns on this invention was comprised as demonstrated above, there exist the following effects.
[0043]
(Claim 1)
By adopting a double structure in which the inner and outer cylindrical sheets overlap the front end of the cylindrical guide part, the stored object hits the inner surface of the cylindrical guide part every time the charged object is filled and discharged, or the outer surface of the cylindrical guide part is rubbed. Even if the contact portion with the ring was rubbed, the strength could be increased to such an extent that there was no fear of a hole in the cylindrical guide portion. Further, since the annular sheet attached to the tip of each cylindrical sheet is stacked on top and bottom and sandwiched between the upper and lower rings, the flange portion can be easily manufactured and the ring may fall off during use. This could be prevented.
Therefore, even if the container is a hard material such as metal powder, a highly reliable flexible container that can withstand long-term use without the need to connect sheets or replace the cylindrical guide part, flange part, etc. Could be provided at low cost.
[0044]
(Claim 2)
In addition to the effect of claim 1, since the cylindrical guide portion distal end side is formed by an internal and external cylindrical sheet in which the distal end and the proximal end are joined and integrated, a foreign matter, a particulate container, etc. It was possible to prevent the possibility of the sheet from entering and damaging the sheet. In addition, since a single annular sheet joined to the inner and outer cylindrical sheet ends is sandwiched between the upper and lower rings, the flexible flange having many effects such as making the flange portion easier and less expensive. We were able to provide a container.
[0045]
(Claim 3)
With existing flexible containers where it is necessary to repair cylindrical guides, flanges, etc. with long-term use, the construction of claims 1 and 2 can be used to withstand long-term use with the aforementioned effects. Could be a product to get.
[0046]
(Claim 4)
The novel flexible container which can endure long-term use provided with the above-mentioned effect by Claim 1 or 2 was able to be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an embodiment of a flexible container according to the present invention.
FIG. 2 is an enlarged vertical sectional view of the lower part of the flexible container, showing an enlarged main part.
FIG. 3 is a simplified diagram showing a manufacturing procedure of the flexible container.
FIG. 4 is an enlarged sectional view of a main part showing another example of the embodiment of the flexible container according to the present invention.
FIG. 5 is an enlarged sectional view of a main part showing another example of the embodiment of the flexible container according to the present invention.
FIG. 6 is an enlarged cross-sectional view of a main part showing another example of the embodiment of the flexible container according to the present invention.
FIG. 7 is a longitudinal sectional view of a lower part of a conventional flexible container.
[Explanation of symbols]
A: Flexible container 1: Container main body 2, 3: Opening 5, 5 ': Cylindrical guide part 6, 7: Flange part 10: Base end side cylinder part 20, 20': Front end side cylinder part 21, 21 ', 21 ": Inner cylindrical sheets 22, 22 ': Outer cylindrical sheets 23, 24: Annular sheets 25a, 25b, 25c: Ring 27: Cover

Claims (4)

コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に取り付けた基端側筒部と、該基端側筒部に取り付けた先端側筒部からなり、該先端側筒部を、前記基端側筒部の先端開口縁に接合した内側の筒状シートと、該内側の筒状シートを覆う外側の筒状シートと、これら内外の筒状シートの先端周縁に接合され上下に重なる環状シートから形成すると共に、
前記フランジ部が、前記上下の環状シートを上下のリングで挟み、これらリングを相互に固定して形成されているフレキシブルコンテナ。
A flexible container having openings for filling or discharging at the top and bottom of a container body, a cylindrical guide portion attached to at least one of the openings, and a flange portion provided at a leading edge of the cylindrical guide portion. ,
The cylindrical guide portion is composed of a proximal end side cylindrical portion attached to the opening and a distal end side cylindrical portion attached to the proximal end side cylindrical portion, and the distal end side cylindrical portion is connected to the distal end of the proximal end side cylindrical portion. An inner cylindrical sheet joined to the opening edge, an outer cylindrical sheet covering the inner cylindrical sheet, and an annular sheet that is joined to the peripheral edge of the inner and outer cylindrical sheets and overlaps the top and bottom,
A flexible container in which the flange portion is formed by sandwiching the upper and lower annular sheets between upper and lower rings and fixing the rings to each other.
コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に取り付けた基端側筒部と、該基端側筒部に取り付けた先端側筒部からなり、該先端側筒部を、前記基端側筒部の先端開口縁に接合した内外二枚重ねの筒状シートと、これら内外の筒状シートの先端接合縁に接合した環状シートから形成すると共に、
前記フランジ部が、前記環状シートを上下のリングで挟み、これらリングを相互に固定して形成されているフレキシブルコンテナ。
A flexible container having openings for filling or discharging at the top and bottom of a container body, a cylindrical guide portion attached to at least one of the openings, and a flange portion provided at a leading edge of the cylindrical guide portion. ,
The cylindrical guide portion is composed of a proximal end side cylindrical portion attached to the opening and a distal end side cylindrical portion attached to the proximal end side cylindrical portion, and the distal end side cylindrical portion is connected to the distal end of the proximal end side cylindrical portion. While forming from the inner and outer two-ply tubular sheet joined to the opening edge, and the annular sheet joined to the tip joining edge of these inner and outer tubular sheets,
A flexible container in which the flange portion is formed by sandwiching the annular sheet between upper and lower rings and fixing the rings to each other.
前記基端側筒部が、既存のフレキシブルコンテナに備えられたフランジ付き筒状ガイド部を中途部で切断したものであって、その切断開口縁に前記先端側筒部を接合して、既存のフレキシブルコンテナにおける筒状ガイド部の先端側を補修してなるものである請求項1又は2記載のフレキシブルコンテナ。  The base end side cylinder part is obtained by cutting a flanged cylindrical guide part provided in an existing flexible container in the middle part, and the tip end side cylinder part is joined to the cutting opening edge, The flexible container according to claim 1 or 2, wherein the distal end side of the cylindrical guide portion in the flexible container is repaired. コンテナ本体の上下に充填用又は排出用の開口を設け、少なくとも何れか一方の開口に筒状ガイド部を取り付けると共に、該筒状ガイド部の先端開口縁にフランジ部を設けたフレキシブルコンテナであって、
前記筒状ガイド部が、前記開口に接合した内側の筒状シートと、該内側の筒状シートを覆う外側の筒状シートと、これら内外の筒状シートの先端周縁に接合され上下に重なる環状シートから形成され、
前記フランジ部が、前記上下の環状シートを上下のリングで挟み、これらリングを相互に固定して形成されているフレキシブルコンテナ。
A flexible container having openings for filling or discharging at the top and bottom of a container body, a cylindrical guide portion attached to at least one of the openings, and a flange portion provided at a leading edge of the cylindrical guide portion. ,
An inner cylindrical sheet joined to the opening, an outer cylindrical sheet that covers the inner cylindrical sheet, and an annular shape that is joined to the peripheral edges of the inner and outer cylindrical sheets and overlaps with each other Formed from sheets,
A flexible container in which the flange portion is formed by sandwiching the upper and lower annular sheets between upper and lower rings and fixing the rings to each other.
JP2002377904A 2002-12-26 2002-12-26 Flexible container Expired - Fee Related JP4088147B2 (en)

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EP1702866A1 (en) * 2005-03-14 2006-09-20 Visval AG Bulk container and connection assembly for the same
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